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The primary objective of this paper is to evaluate the reliability of a communication link developed to serve the communication requirement between the server and the remotely located grid tied inverter. A novel approach which combines both static Fault Tree Analysis and Monte Carlo simulation method has been used to achieve the principal objective. In this procedure, firstly the system has been divided into several primary sub systems, and static fault tree is developed based on that. Then the Monte Carlo simulation has been conducted to calculate the reliability indices of the system. Finally, sensitivity analysis has been performed using the Monte Carlo simulation approach. As a conclusion, based on the available data and assumed reliability parameters, this study suggests adding another communication channel to improve the availability of the SCADA system. The approach presented in the article can be easily used to evaluate the reliability of any other communication link.